Step-by-step explanation:
At equilibrium, if the reaction vessel increases in volume, then the pressure will decrease, then the equilibrium will shift to the side with the most quantity of moles.
According to the reaction: P4 (s) + 6 Cl2 (g) => 4 PCl3 (l)
Gases are only considered here.
The statements that apply are:
increase in Cl2
shift to the left
Answer:
increase in Cl2
shift to the left